What is P0137 : Engine Error code Causes Explained
The P0137 engine error code occurs when the oxygen sensor in Bank 1, Sensor 2 reports a consistently low voltage, usually indicating the sensor detects a lean condition.
How to Identify a DTCs Number
The P0137 engine error code occurs when the oxygen sensor in Bank 1, Sensor 2 reports a consistently low voltage, usually indicating the sensor detects a lean condition.
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
An OBD-II scanner linked to your vehicle’s diagnostic port can extract the exact fault code contained in the engine control module to identify a DTC like P0137 for further inspection or repair.
Causes of P0137 Error Code:
- Faulty 02 sensor.
The sensor may give incorrect voltage due to contamination or malfunction. - Damaged 02 sensor wiring:
Broken wires, corroded connectors, or high resistance can disrupt the signal. - Exhaust leaks:
Exhaust leaks before the 02 sensor can cause low voltage readings. - Fuel system issues:
Low fuel pressure or a faulty regulator can affect the 02 sensor signal. - Engine misfires:
Misfires can disrupt the combustion process, leading to erratic 02 sensor readings.
Risk Level of P0137 Error Code:
The P0137 code is considered a medium risk level because while the vehicle can still operate, prolonged driving with this issue can lead to increased emissions, reduced fuel efficiency, and potential damage to the catalytic converter over time.
Common Car Brands Affected by P0137 Code:
The P0137 code can affect various vehicles, it is most commonly associated with:
- Ford
- Volkswagen
- Nissan
- Honda
- Chevrolet
- Toyota
- Chrysler
Video: P0137 Engine Error code
FAQ’s
What is the P0137 Engine Error Code?
P0137 means the oxygen sensor (Bank 1, Sensor 2) is reporting a low voltage, indicating a lean condition or insufficient oxygen sensor output.
What Causes the P0137 Error Code?
Causes may include a failing O2 sensor, damaged wiring, exhaust leaks, or fuel delivery problems.
What is the Risk Level of the P0137 Code?
The risk level is medium, as it can lead to poor fuel efficiency, higher emissions, and possible catalytic converter damage over time.
Which Vehicles are Commonly Affected by P0137?
It can affect many OBD-II equipped gasoline vehicles, including Toyota, Honda, Ford, Nissan, Chevrolet, and Chrysler models.